Warning: The install command is a part of the legacy v1 style of cabal usage.

Please switch to using either the new project style and the new-install
command or the legacy v1-install alias as new-style projects will become the
default in the next version of cabal-install. Please file a bug if you cannot
replicate a working v1- use case with the new-style commands.

For more information, see: https://wiki.haskell.org/Cabal/NewBuild

Resolving dependencies...
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Starting     split-0.2.3.3
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Starting     transformers-base-0.4.5.2
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Starting     invariant-0.5.3
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Starting     free-5.1.2
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Completed    free-5.1.2
Starting     adjunctions-4.4
Building     adjunctions-4.4
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Starting     kan-extensions-5.2
Building     kan-extensions-5.2
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Starting     lens-4.18
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Starting     vec-0.1.1.1
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Downloading  overloaded-0.1.1
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Starting     overloaded-0.1.1
Building     overloaded-0.1.1
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